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WO2001084667A1 - Card comprising an antenna - Google Patents

Card comprising an antenna Download PDF

Info

Publication number
WO2001084667A1
WO2001084667A1 PCT/IB2001/000759 IB0100759W WO0184667A1 WO 2001084667 A1 WO2001084667 A1 WO 2001084667A1 IB 0100759 W IB0100759 W IB 0100759W WO 0184667 A1 WO0184667 A1 WO 0184667A1
Authority
WO
WIPO (PCT)
Prior art keywords
card
antenna
flat coil
dimensions
reader
Prior art date
Application number
PCT/IB2001/000759
Other languages
French (fr)
Inventor
Norbert Borg
Original Assignee
Schlumberger Systemes
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schlumberger Systemes filed Critical Schlumberger Systemes
Publication of WO2001084667A1 publication Critical patent/WO2001084667A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G06K19/0726—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs the arrangement including a circuit for tuning the resonance frequency of an antenna on the record carrier
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Definitions

  • the present invention relates to a card comprising an antenna in the form of a flat coil.
  • the antenna allows the card to communicate with a card reader in a contactless fashion.
  • Cards of this type can be used, for example, as bank cards, telephone cards, identity cards, access cards, etc.
  • a so-called contactless integrated circuit card typically comprises a card body having embedded therein an antenna connected to an integrated circuit.
  • the antenna is typically in the form of a flat coil.
  • the flat coil is formed by a conductive track on a support sheet.
  • the conductive track extends in a spiral-like fashion close to the periphery of the card. That is, the turns of the flat coil have dimensions that substantially correspond to the dimensions of the card.
  • United States Patent number 5,337,063 describes a contactless integrated circuit card.
  • Figure 6 of this patent publication illustrates a typical configuration of such a card.
  • the antenna which is in the form of a flat coil connected to the integrated circuit, has a certain resonant frequency.
  • the card concerned will be able to communicate with a reader that emits an electromagnetic field whose frequency is sufficiently close this resonant frequency.
  • An object- of the invention is to allow satisfactory performance at moderate cost.
  • a card comprising an antenna in the form of a flat coil, which comprises an outer turn having dimensions that are substantially equal to those of the card, is characterized in that the flat coil comprises an inner turn having dimensions that are substantially smaller than those of the card.
  • the invention takes the following aspects into consideration. Many applications require that a card can communicate with a reader when the card is within a certain distance from the reader. Whether communication can take place or not basically depends on two factors : the strength of the electromagnetic field that the reader emits and the sensitivity of the card to that electromagnetic field. The more sensitive the card is, the less strong the electromagnetic field needs to be. In principle it holds that less strong the electromagnetic field that a reader needs to emit, the cheaper the reader is. Furthermore, an electromagnetic field of moderate strength is also desirable for reasons of health and noninterference with other electronic equipment. Thus, it is desirable that a card is relatively sensitive to the electromagnetic field that a reader emits.
  • the sensitivity of a card depends, amongst other things, on the layout of the antenna, which is in the form of a flat coil.
  • the sensitivity of a card further depends on the resonant frequency of its antenna.
  • the frequency of the electromagnetic field that the reader emits will be referred to as reader frequency hereinafter.
  • the resonant frequency depends, amongst other things, on the number of turns. In practice, the number of turns will be an integer, 1, 2, or 3, etc.
  • the resonant frequency changes in relatively large steps by changing the number of turns. However, there are other parameters that allow the antenna to have a resonance frequency that is sufficiently close to the reader frequency.
  • the resonant frequency varies as a function of the width of the conductor track that forms the flat coil.
  • the conductor track will be visible if it is relatively wide, for example, if it is wider than 500 micrometer. This may be undesirable for esthetic reasons.
  • the smaller the width of the conductor track is the greater the electrical resistance of the antenna will be.
  • a width comprised between 100 and 500 micrometers constitutes a suitable value.
  • the capacitor should have a value that is comprised within a relatively narrow range. Consequently, the capacitor needs to have a relatively precise value or the capacitor needs to be adjustable. In either case, the capacitor will be relatively expensive.
  • a card in accordance with the invention has an antenna in the form of a flat coil comprising an outer turn having dimensions that are substantially equal to those of the card, and comprising an inner turn having dimensions that are substantially smaller than those of the card.
  • the inner turn allows the resonant frequency to be sufficiently close to the reader frequency without connecting a capacitor in parallel to the flat coil.
  • the inner turn further allows the resonant frequency to be sufficiently close to the reader frequency using a conductor track that is sufficiently narrow so that it is barely visible or even not visible at all, but not too narrow so that the antenna has a sufficiently low electrical resistance.
  • the fact that the inner turn has dimensions that are substantially smaller than those of the card, is, as such, not an optimal design choice with regard to sensitivity. However, any loss in sensitivity, which is due to the relatively small inner turn, is generally more than compensated by the gain in sensitivity achieved by the aforementioned aspects. Overall, the invention allows a satisfactory sensitivity at relatively modest cost.
  • Figure 1 is a plan view of a card in accordance with the invention during manufacture; and Figure 2 is a view analogous to Figure 1 showing the card an adjustment procedure that is optional.
  • the card described below is intended in conventional manner to incorporate an integrated circuit and then embedded in a further body so as to enable the integrated circuit to be powered and so as to enable it to exchange data with a reader that emits a magnetic field.
  • the card of the invention given overall reference 1 comprises a support sheet 2 having a face 3 on which there extends a conductor track given overall reference 4.
  • the conductor track can be made by silkscreen printing a conductive ink on the support sheet, by being cut out and then fixed to the support sheet, or by etching a copper sheet previously deposited on the support sheet, or by any other appropriate method of manufacture.
  • the conductor track has a width that is preferably comprised between 100 and 500 micrometers. A width of 250 micrometers, or close thereto, is a particularly suitable value.
  • the conductor track 4 forms a set 5 of outer turns 6, 7 together with an inner turn 8.
  • the conductor track 4 has enlarged ends 9 forming terminals for connection to the integrated circuit.
  • the outer turns 6, 7 are of dimensions that are substantially identical (same areas and perimeters) .
  • the inner turn 8 has dimensions that are smaller than those of the set of turns 5. The dimensions of the inner turn 8 are determined so that the inductance of the antenna is such that the resonant frequency of the assembly comprising the integrated circuit and the antenna corresponds to a predetermined value that ensures communication can take place over a satisfactory range between the card and a reader.
  • the antenna 1 has segments 10, 11 which extend on the face 3 of the support sheet 2 and which are connected electrically in parallel with a segment 12 of the inner turn 8.
  • the inductance of the antenna 1 may optionally be adjusted by disconnecting two of the parallel-connected segments, in this case the segments 10 and 12, so that only one of the parallel segments remains connected to the remainder of the antenna, in this case the segment 11. Under such circumstances, only the segment 11 is included in the inner turn 8.
  • the segments 10 and 12 are disconnected by being cut by punching the antenna 1 (the punched zones are referenced 13 in Figure 2) . This disconnection could also be performed merely by removing a portion of the conductor track.
  • a card (1) comprises an antenna in the form of a flat coil.
  • the flat coil comprises an outer turn (6) having dimensions that are substantially equal to those of the card.
  • the flat coil further comprises an inner turn (8) having dimensions that are substantially smaller than those of the card.
  • the invention is not limited to the embodiment described and variants can be applied thereto without going beyond the ambit of the invention as defined by the claims.
  • the antenna need have only one outer turn.
  • the antenna need not have parallel segments or the segments can be connected electrically in parallel to a segment of the innermost turn of the set of outer turns.
  • the segments are shown as being geometrically parallel to one another, they could be at angles to one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Near-Field Transmission Systems (AREA)
  • Details Of Aerials (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

A card (1) comprises an antenna in the form of a flat coil. The flat coil comprises an outer turn (6) having dimensions that are substantially equal to those of the card. The flat coil further comprises an inner turn (8) having dimensions that are substantially smaller than those of the card.

Description

CARD COMPRISING AN ANTENNA
FIELD OF THE INVENTION
The present invention relates to a card comprising an antenna in the form of a flat coil. The antenna allows the card to communicate with a card reader in a contactless fashion. Cards of this type can be used, for example, as bank cards, telephone cards, identity cards, access cards, etc.
BACKGROUND OF THE INVENTION
A so-called contactless integrated circuit card typically comprises a card body having embedded therein an antenna connected to an integrated circuit. The antenna is typically in the form of a flat coil. The flat coil is formed by a conductive track on a support sheet. The conductive track extends in a spiral-like fashion close to the periphery of the card. That is, the turns of the flat coil have dimensions that substantially correspond to the dimensions of the card. United States Patent number 5,337,063 describes a contactless integrated circuit card. Figure 6 of this patent publication illustrates a typical configuration of such a card. The antenna, which is in the form of a flat coil connected to the integrated circuit, has a certain resonant frequency. The card concerned will be able to communicate with a reader that emits an electromagnetic field whose frequency is sufficiently close this resonant frequency.
SUMMARY OF THE INVENTION
An object- of the invention is to allow satisfactory performance at moderate cost. To that end, a card comprising an antenna in the form of a flat coil, which comprises an outer turn having dimensions that are substantially equal to those of the card, is characterized in that the flat coil comprises an inner turn having dimensions that are substantially smaller than those of the card.
The invention takes the following aspects into consideration. Many applications require that a card can communicate with a reader when the card is within a certain distance from the reader. Whether communication can take place or not basically depends on two factors : the strength of the electromagnetic field that the reader emits and the sensitivity of the card to that electromagnetic field. The more sensitive the card is, the less strong the electromagnetic field needs to be. In principle it holds that less strong the electromagnetic field that a reader needs to emit, the cheaper the reader is. Furthermore, an electromagnetic field of moderate strength is also desirable for reasons of health and noninterference with other electronic equipment. Thus, it is desirable that a card is relatively sensitive to the electromagnetic field that a reader emits. The sensitivity of a card depends, amongst other things, on the layout of the antenna, which is in the form of a flat coil. The larger the turns of the flat coil are, the more sensitive the card is. Thus, in principle, it is advantageous that the turns of the flat coil are close to the periphery of the card. In other words, it is advantageous that the turns have dimensions that are substantially equal to those of the card.
The sensitivity of a card further depends on the resonant frequency of its antenna. The closer the resonant frequency is to the frequency of the electromagnetic field that the reader emits, the more sensitive the card will be. The frequency of the electromagnetic field that the reader emits will be referred to as reader frequency hereinafter. The resonant frequency depends, amongst other things, on the number of turns. In practice, the number of turns will be an integer, 1, 2, or 3, etc. The resonant frequency changes in relatively large steps by changing the number of turns. However, there are other parameters that allow the antenna to have a resonance frequency that is sufficiently close to the reader frequency. The resonant frequency varies as a function of the width of the conductor track that forms the flat coil. The conductor track will be visible if it is relatively wide, for example, if it is wider than 500 micrometer. This may be undesirable for esthetic reasons. On the other hand, the smaller the width of the conductor track is, the greater the electrical resistance of the antenna will be. The greater the electrical resistance of the antenna, the less sensitive the card will be. It is therefore desirable that the conductor is just sufficiently narrow so that it is barely visible, but not much narrower. A width comprised between 100 and 500 micrometers constitutes a suitable value.
In principle, it is possible to bring the resonant frequency sufficiently close to the reader frequency by connecting a capacitor in parallel to the flat coil. The capacitor should have a value that is comprised within a relatively narrow range. Consequently, the capacitor needs to have a relatively precise value or the capacitor needs to be adjustable. In either case, the capacitor will be relatively expensive.
A card in accordance with the invention, has an antenna in the form of a flat coil comprising an outer turn having dimensions that are substantially equal to those of the card, and comprising an inner turn having dimensions that are substantially smaller than those of the card.
The inner turn allows the resonant frequency to be sufficiently close to the reader frequency without connecting a capacitor in parallel to the flat coil. The inner turn further allows the resonant frequency to be sufficiently close to the reader frequency using a conductor track that is sufficiently narrow so that it is barely visible or even not visible at all, but not too narrow so that the antenna has a sufficiently low electrical resistance. The fact that the inner turn has dimensions that are substantially smaller than those of the card, is, as such, not an optimal design choice with regard to sensitivity. However, any loss in sensitivity, which is due to the relatively small inner turn, is generally more than compensated by the gain in sensitivity achieved by the aforementioned aspects. Overall, the invention allows a satisfactory sensitivity at relatively modest cost.
These and other characteristics and advantages of the invention will appear on reading the following description of a particular and non-limiting embodiment of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a plan view of a card in accordance with the invention during manufacture; and Figure 2 is a view analogous to Figure 1 showing the card an adjustment procedure that is optional.
DETAILED DESCRIPTION
The card described below is intended in conventional manner to incorporate an integrated circuit and then embedded in a further body so as to enable the integrated circuit to be powered and so as to enable it to exchange data with a reader that emits a magnetic field.
With reference to the figures, the card of the invention given overall reference 1 comprises a support sheet 2 having a face 3 on which there extends a conductor track given overall reference 4. The conductor track can be made by silkscreen printing a conductive ink on the support sheet, by being cut out and then fixed to the support sheet, or by etching a copper sheet previously deposited on the support sheet, or by any other appropriate method of manufacture. The conductor track has a width that is preferably comprised between 100 and 500 micrometers. A width of 250 micrometers, or close thereto, is a particularly suitable value.
The conductor track 4 forms a set 5 of outer turns 6, 7 together with an inner turn 8. The conductor track 4 has enlarged ends 9 forming terminals for connection to the integrated circuit.
The outer turns 6, 7 are of dimensions that are substantially identical (same areas and perimeters) . The inner turn 8 has dimensions that are smaller than those of the set of turns 5. The dimensions of the inner turn 8 are determined so that the inductance of the antenna is such that the resonant frequency of the assembly comprising the integrated circuit and the antenna corresponds to a predetermined value that ensures communication can take place over a satisfactory range between the card and a reader.
With reference more particularly to Figure 1, the antenna 1 has segments 10, 11 which extend on the face 3 of the support sheet 2 and which are connected electrically in parallel with a segment 12 of the inner turn 8.
With reference more particularly to Figure 2, the inductance of the antenna 1 may optionally be adjusted by disconnecting two of the parallel-connected segments, in this case the segments 10 and 12, so that only one of the parallel segments remains connected to the remainder of the antenna, in this case the segment 11. Under such circumstances, only the segment 11 is included in the inner turn 8.
The segments 10 and 12 are disconnected by being cut by punching the antenna 1 (the punched zones are referenced 13 in Figure 2) . This disconnection could also be performed merely by removing a portion of the conductor track.
It is thus possible to adjust the inductance of the antenna as a function of the electrical characteristics of the integrated circuit that is to be connected thereto firstly by modifying the dimensions of the inner turn 8 during manufacture of the antenna 1 and secondly by selecting that one of the parallel segments 10, 11, and 12 which will make it possible to obtain an inner turn 8 of dimensions that are exactly matched while disconnecting the other segments.
The embodiments described hereinbefore illustrate the following basic characteristics. A card (1) comprises an antenna in the form of a flat coil. The flat coil comprises an outer turn (6) having dimensions that are substantially equal to those of the card. The flat coil further comprises an inner turn (8) having dimensions that are substantially smaller than those of the card. Naturally, the invention is not limited to the embodiment described and variants can be applied thereto without going beyond the ambit of the invention as defined by the claims.
In particular, the antenna need have only one outer turn.
Furthermore, the antenna need not have parallel segments or the segments can be connected electrically in parallel to a segment of the innermost turn of the set of outer turns. Although the segments are shown as being geometrically parallel to one another, they could be at angles to one another.

Claims

1/ A card comprising an antenna in the form of a flat coil comprising an outer turn (β) having dimensions that are substantially equal to those of the card, characterized in that the flat coil comprises an inner turn (8) having dimensions that are substantially smaller than those of the card.
2/ A card according to claim 1, characterized in that the inner turn comprises a plurality of conductor track segments (10, 11, 12) that are connected electrically in parallel .
3/ A method of adjusting a card as claimed in claim 2, the method being characterized in that it comprises the step of interrupting all but one of the conductor track segments (10, 11, 12) .
PCT/IB2001/000759 2000-05-03 2001-05-03 Card comprising an antenna WO2001084667A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0005631A FR2808648B1 (en) 2000-05-03 2000-05-03 ANTENNA FOR AN INTEGRATED CIRCUIT CARD AND METHOD FOR ADJUSTING THE INDUCTANCE OF SUCH AN ANTENNA
FR0005631 2000-05-03

Publications (1)

Publication Number Publication Date
WO2001084667A1 true WO2001084667A1 (en) 2001-11-08

Family

ID=8849833

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/000759 WO2001084667A1 (en) 2000-05-03 2001-05-03 Card comprising an antenna

Country Status (2)

Country Link
FR (1) FR2808648B1 (en)
WO (1) WO2001084667A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1403816A2 (en) * 2002-09-27 2004-03-31 Kabushiki Kaisha Toshiba Method of mounting a hybrid IC card and hybrid IC card
WO2006055653A1 (en) * 2004-11-15 2006-05-26 Sensormatic Electronics Corporation Combination eas and rfid label or tag
EP1742296A1 (en) * 2005-07-08 2007-01-10 Fujitsu Ltd. Antenna and RFID tag mounting the same
EP1843431A1 (en) * 2005-01-24 2007-10-10 Fujitsu Ltd. Antenna and rfid tag mounted with same
US7804411B2 (en) 2004-11-15 2010-09-28 Sensormatic Electronics, LLC Combination EAS and RFID label or tag using a hybrid RFID antenna
CN102254212A (en) * 2010-05-10 2011-11-23 索尼公司 Communication medium, communication apparatus, and antenna adjusting method
EP3182507A1 (en) * 2015-12-15 2017-06-21 Gemalto Sa Single-sided antenna module with smd component

Citations (3)

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Publication number Priority date Publication date Assignee Title
US4021705A (en) * 1975-03-24 1977-05-03 Lichtblau G J Resonant tag circuits having one or more fusible links
US4752680A (en) * 1984-11-20 1988-06-21 Saab Automation Ab Tags for identification system
US5337063A (en) * 1991-04-22 1994-08-09 Mitsubishi Denki Kabushiki Kaisha Antenna circuit for non-contact IC card and method of manufacturing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09298413A (en) * 1996-05-08 1997-11-18 Harada Ind Co Ltd In-vehicle window glass antenna device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021705A (en) * 1975-03-24 1977-05-03 Lichtblau G J Resonant tag circuits having one or more fusible links
US4752680A (en) * 1984-11-20 1988-06-21 Saab Automation Ab Tags for identification system
US5337063A (en) * 1991-04-22 1994-08-09 Mitsubishi Denki Kabushiki Kaisha Antenna circuit for non-contact IC card and method of manufacturing the same

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1403816A2 (en) * 2002-09-27 2004-03-31 Kabushiki Kaisha Toshiba Method of mounting a hybrid IC card and hybrid IC card
EP1403816A3 (en) * 2002-09-27 2005-06-15 Kabushiki Kaisha Toshiba Method of mounting a hybrid IC card and hybrid IC card
KR101166598B1 (en) 2004-11-15 2012-07-18 센소매틱 일렉트로닉스, 엘엘씨 Combination eas and rfid label or tag
WO2006055653A1 (en) * 2004-11-15 2006-05-26 Sensormatic Electronics Corporation Combination eas and rfid label or tag
AU2005307753B2 (en) * 2004-11-15 2010-07-22 Sensormatic Electronics Llc Combination EAS and RFID label or tag
US7804411B2 (en) 2004-11-15 2010-09-28 Sensormatic Electronics, LLC Combination EAS and RFID label or tag using a hybrid RFID antenna
US7804410B2 (en) 2004-11-15 2010-09-28 Sensormatic Electronics, LLC Combination EAS and RFID label or tag
EP1843431A1 (en) * 2005-01-24 2007-10-10 Fujitsu Ltd. Antenna and rfid tag mounted with same
EP1843431A4 (en) * 2005-01-24 2009-04-15 Fujitsu Ltd ANTENNA AND RADIO FREQUENCY IDENTIFICATION LABEL MOUNTED WITH THE SAME
US7667658B2 (en) 2005-01-24 2010-02-23 Fujitsu Limited Antenna and RFID tag with same mounted
US7408467B2 (en) 2005-07-08 2008-08-05 Fujitsu Limited Antenna and RFID tag mounting the same
EP1742296A1 (en) * 2005-07-08 2007-01-10 Fujitsu Ltd. Antenna and RFID tag mounting the same
CN102254212A (en) * 2010-05-10 2011-11-23 索尼公司 Communication medium, communication apparatus, and antenna adjusting method
EP2387109A3 (en) * 2010-05-10 2012-12-26 Sony Corporation Contactless communication medium, antenna pattern-placed medium, communication apparatus, and antenna adjusting method
US8774712B2 (en) 2010-05-10 2014-07-08 Sony Corporation Contactless communication medium, antenna pattern-placed medium, communication apparatus, and antenna adjusting method
EP3182507A1 (en) * 2015-12-15 2017-06-21 Gemalto Sa Single-sided antenna module with smd component
WO2017102749A1 (en) * 2015-12-15 2017-06-22 Gemalto Sa Single face antenna module comprising cms device
CN108370087A (en) * 2015-12-15 2018-08-03 格马尔托股份有限公司 Single side Anneta module with CMS devices
US10804594B2 (en) 2015-12-15 2020-10-13 Thales Dis France Sa Single-face antenna module comprising CMS device

Also Published As

Publication number Publication date
FR2808648B1 (en) 2004-07-30
FR2808648A1 (en) 2001-11-09

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